Regulation of bacterial operons by inducers, e.g. lactose, exhibits which of the following properties?(1) Inducer binds to the repressor and __________(2) Inducer effect on RNA polymerase binding to the promoter: ___________(3) Repressor produced by:Select one:A.(1) Activates the repressor, (2) Enhances, (3) A separate geneB.(1) Inhibits the repressor, (2) No effect, (3) A separate geneC.(1) Inhibits the repressor, (2) Inhibits, (3) Genes of the operonD.(1) Activates the repressor, (2) Inhibits, (3) A separate geneE.(1) Activates the repressor, (2) Enhances, (3) Genes of the operon

A. coding sequence B.promoter C. repressor D. operator sequence E. inducer 33.____ turns off the lactose operon when glucose is abundant or lactose is absent 34.____ turns on the lactose operon by binding the repressor 35.____ sequence for binding of RNA polymerase 36.____Structural genes for lactose utilization 37.____sequence that binds the repressor

Lactose or its analogues act as positive regulators of Lac operon by:Select one:a. Binding to repressor subunits so that the repressor cannot attached to operator locus.b. Attaching to I gene and preventing its expressionc. Attaching to promoter region and facilitating the biding of RNA polymerased. Increasing the synthesis of catabolic gene activator protein.Clear my choice

In an inducible bacterial operon, what is the effect of the binding of the inducer molecule to the repressor protein? Inhibits the binding of the repressor protein to the operator and activates gene transcription Promotes the binding of the repressor protein to the operator and blocks gene transcription Has no effect on the binding of the repressor to the operator and transcription Inhibits the binding of DNA polymerase to the operator Promotes the splicing of the mRNA

3. The lac operon is an example of a(n)a) constitutive geneC) repressed geneb) induced gened) two of the above

4. What molecule serves as an inducer of the lac operon?a) Lactosec) Allolactoseb)e) lacl